R-mediation of Dynamical Supersymmetry Breaking
Noriaki Kitazawa, Nobuhito Maru, Nobuchika Okada
Abstract
We propose a simple scenario of the dynamical supersymmetry breaking in four dimensional supergravity theories. The supersymmetry breaking sector is assumed to be completely separated as a sequestered sector from the visible sector, except for the communication by the gravity and U(1)R gauge interactions, and the supersymmetry breaking is mediated by the superconformal anomaly and U(1)R gauge interaction. Supersymmetry is dynamically broken by the interplay between the non-perturbative effect of the gauge interaction and Fayet-Iliopoulos D-term of U(1)R which necessarily exists in supergravity theories with gauged U(1)R symmetry. We construct an explicit model which gives phenomenologically acceptable mass spectrum of superpartners with vanishing (or very small) cosmological constant.
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